Microsoft Word - Acta_TA_10_1__2011
نویسندگان
چکیده
Background. The use of plant origin polyphenols as food ingredients, supplements or antioxidants is very promising as a future trend for human health and food stability. Free radical activity, responsible for human ageing and food deterioration could be delayed by the use of antioxidants present in fruit and vegetables. The aim of the present research was to evaluate and compare the antiradical activity of selected fruits and vegetable snacks as a new promising kind of functional foods. Material and methods. In the present study, seven commercial plant food snacks were analysed for the total polyphenol content and antioxidant activity evaluated according to the DPPH and ABTS radical scavenging methods. Results. The highest total polyphenol content was evaluated in chokeberry and blackcurrant chips extracts, apple chips contained significantly lower amount among all snacks. Chokeberry extract exhibited the highest antiradical activity when determined by the DPPH and ABTS radical scavenging methods, while the apple and carrot chips extracts showed the lowest antiradical activity. DPPH and ABTS gave comparable results and were highly correlated (r = 0.83, p < 0.05). Conclusions. Results obtained indicate that selection of plant matrices for snack production would be very important for consumer’s health, as they are potential sources of dietary antioxidants.
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Microsoft Word - Acta_TA_10_1__2011
Corresponding author – Adres do korespondencji: Dr hab. inż. Stanisław Błażejak, Department of Food Biotechnology and Microbiology of Warsaw University of Life Sciences, Nowoursynowska 159 C (build. 32), 02-787 Warsaw, Poland, e-mail: [email protected] APPLICATION OF IMMOBILIZED CELL PREPARATION OBTAINED FROM BIOMASS OF GLUCONACETOBACTER XYLINUS BACTERIA IN BIOTRANSFORMATION OF GLYCERO...
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Corresponding author – Adres do korespondencji: Dr inż. Zuzanna Goluch-Koniuszy, Department of Human Nutrition Physiology of Western Pomeranian University of Technology in Szczecin, Papieża Pawła VI/3, 71-451 Szczecin, Poland, e-mail: [email protected] APPRECIATION OF CONCENTRATION OF LIPOPROTEINS AND APOLIPOPROTEINS IN SERUM OF MALE RATS UNDER THE INFLUENCE OF DIET CHANGE COMP...
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Background. Phenolic acids were repeatedly pointed out as powerful antioxidants. The studies in the past prove the differences in the phenolic acids content in malts and worts. In this work, the influence of wort boiling and whirlpool separation on the phenolic acid content was studied. Material and methods. Worts were produced in the local brewery by the infusion method using pale pilsner-type...
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Background. The aim of the study was to observe the effects of a modified diet, in which whole grains of cereals had been isocalorically substituted with wheat flour (type “500”) and saccharose, and supplementation with B-group vitamins, on selected calcium metabolism parameters in female rats. Material and methods. The experiment was carried out on 36 female rats aged 6 months. Animals were fe...
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